Very close tbh.
NJ definitely owns the charting records.
But when it comes to impact? NJ has engineered a cultural reset in Kpop that is still going on today, a whole new generation of songs, acts, MVs have been influenced by them.
But Dalla came at literal peak 3rd gen, when BP, Twice and BTS were still conquering the world. Nobody at the time gave a thought to 4th gen. But Dalla was like the first shot across the bow, a warning to ALL 3rd gen stans that the clock had started to tick and their days on top were numbered...